Exploració per autor "Kartsakli, Elli"

Ara es mostren els items 14-33 de 74

    • Coexistence of a novel medium access control protocol for wireless ad hoc networks and the IEEE 802.11 

      Alonso Zárate, Jesús; Verikoukis, Christos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga (2010)
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    • Communication recovery with emergency aerial networks 

      Mekikis, Prodromos Vasileios; Antonopoulos, Angelos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2017-08-01)
      Article
      Accés obert
      In spite of the significant advancements in wireless connectivity, the static form of the network infrastructure cannot guarantee an uninterrupted operation of the ever-growing wireless consumer electronics in emergency ...

    • Connectivity analysis in clustered wireless sensor networks powered by solar energy 

      Mekikis, Prodromos Vasileios; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2018-04)
      Article
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      Emerging 5G communication paradigms, such as machine-type communication, have triggered an explosion in ad-hoc applications that require connectivity among the nodes of wireless networks. Ensuring a reliable network operation ...

    • Connectivity analysis in wireless-powered sensor networks with battery-less devices 

      Mekikis, Prodromos Vasileios; Antonopoulos, Angelos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      The emerging Internet of Things paradigm has triggered an explosion in ad-hoc applications that require connectivity among the nodes of wireless networks. However, the channel randomness and the random deployment of such ...

    • Connectivity of large-scale WSNs in fading environments under different routing Mechanisms 

      Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos; Lalos, Aristeidis; Mekikis, Prodromos Vasileios; Kartsakli, Elli (Institute of Electrical and Electronic Engineers, 2015-06-12)
      Comunicació de congrés
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      As the number of nodes in wireless sensor networks (WSNs) increases, new challenges have to be faced in order to maintain their performance. A fundamental requirement of several applications is the correct transmission of ...

    • Connectivity of large-scale WSNs in fading environments under different routing mechanisms 

      Mekikis, Prodromos Vasileios; Kartsakli, Elli; Lalos, Aristeidis; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      As the number of nodes in wireless sensor networks (WSNs) increases, new challenges have to be faced in order to maintain their performance. A fundamental requirement of several applications is the correct transmission of ...

    • Cooperation incentives for multi-operator C-RAN energy efficient sharing 

      Vincenzi, Matteo; Antonopoulos, Angelos; Kartsakli, Elli; Vardakas, John; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      Facing the increasing energy demands associated with the perspective of fifth generation (5G) wireless networks, the Mobile Network Operators (MNOs) are motivated to gradually convert their traditional Radio Access Network ...

    • Cooperative ARQ: a medium access control (MAC) layer perspective 

      Alonso Zárate, Jesús; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (INTECH, 2010)
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    • Cooperative compressed sensing schemes for telemonitoring of vital signals in WBANs 

      Lalos, Aristeidis; Kartsakli, Elli; Antonopoulos, Angelos; Tennina, Stefano; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
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      Wireless Body Area Networks (WBANs) are composed of various sensors that either monitor and transmit real time vital signals or act as relays that forward the received data packets to a nearby Body Node Coordinator (BNC). ...

    • Cooperative energy harvesting-adaptive MAC protocol for WBANs 

      Esteves, Volker; Antonopoulos, Angelos; Kartsakli, Elli; Puig Vidal, Manel; Miribel Català, Pere Lluís; Verikoukis, Christos (2015-06-01)
      Article
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      In this paper, we introduce a cooperative medium access control (MAC) protocol, named cooperative energy harvesting (CEH)-MAC, that adapts its operation to the energy harvesting (EH) conditions in wireless body area networks ...

    • Cross layer access point selection mechanisms for a distributed queuing MAC protocol 

      Antonopoulos, Angelos; Alonso Zárate, Jesús; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013-07)
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      The Distributed Queuing with Collision Avoidance (DQCA) Medium Access Control (MAC) protocol has been presented in the literature as a high-performance protocol for WLANs. Previous work regarding DQCA is focused on the ...

    • Cross-layer design and optimization of medium access control protocols for wlans 

      Kartsakli, Elli (Universitat Politècnica de Catalunya, 2012-02-16)
      Tesi
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      This thesis provides a contribution to the field of Medium Access Control (MAC) layer protocol design for wireless networks by proposing and evaluating mechanisms that enhance different aspects of the network performance. ...

    • Cross-layer enhancement for WLAN systems based on a distributed queuing MAC protocol 

      Verikoukis, Christos; Alonso Zárate, Jesús; Kartsakli, Elli; Cateura, A; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2006-05-31)
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      Cross-Layer optimization is an emerging research topic. This paper proposes two novel cross-layer mechanisms to be included in a WLAN system where a near-optimum distributed MAC protocol is used. Their performance in terms ...

    • Cross-layer enhancement for WLAN systems with heterogeneous traffic based on DQCA 

      Kartsakli, Elli; Cateura, A; Alonso Zárate, Jesús; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2007-06-30)
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      Voice transmission over WLAN and cross-layer optimization are emerging research topics. This paper proposes two novel cross-layer mechanisms for a WLAN system where the offered traffic is of mixed nature (voice and data) ...

    • Dealing with VoIP calls during ‘busy hour’ in LTE 

      Antonopoulos, Angelos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (INTECH, 2011)
      Capítol de llibre
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    • Dynamic energy efficient distance-aware base station switch on/off scheme for LTE-advanced 

      Kartsakli, Elli; Bousia, Alexandra; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2012)
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      Reducing the energy consumption in wireless networks has become a significant problem, not only because of its great impact on the global energy crisis, but also because it represents a noteworthy cost for telecommunication ...

    • End-to-end communication challenges in M2M systems for mHealth applications 

      Kartsakli, Elli; Lalos, Aristeidis; Antonopoulos, Angelos; Tennina, Stefano; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      In the new era of connectivity, marked by the explosive number of wireless electronic devices and the need for smart and pervasive applications, Machine-to-Machine (M2M) communications are an emerging technology that enables ...

    • Energy efficient base station maximization switch off scheme for LTE-advanced 

      Bousia, Alexandra; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2012)
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      In this paper, we introduce a solution to a maximization problem for switching off Base Stations in an LTE-Advanced wireless network. Our scheme exploits the existence of idle periods in a cellular network during “night ...

    • Energy efficient techniques for 802.11n multiuser MAC WLANs 

      Gajic, Danica; Kartsakli, Elli; Zorba Barah, Nizar; Liß, Christian; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013)
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      In this paper we evaluate the energy efficiency of MIMO technologies introduced in the emerging IEEE 802.11n standard for infrastructure based WLANs. The main focus is on exploiting multiuser capabilities of MIMO technologies, ...

    • Energy impact of outdoor small cell backhaul in green heterogeneous networks 

      Mesodiakaki, Agapi; Adelantado Freixer, Ferran; Antonopoulos, Angelos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
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      Small cells (SCs) are expected to be densely deployed during the next few years to enhance the network capacity of future heterogeneous networks (HetNets). Due to their dense deployment, not all SCs are expected to have a ...